Wasn't the Atlanta Olympics bomb a set of pipe bombs, surrounded by nails, placed in Tupperware, then stuffed in a backpack?
Ammo cans don't kill people cause mindless panic. People kill people cause mindless panic.
Where and how you hide your container will most likely be the determining factor in getting the cops called, not the type of container. Pick two of any container you wish, (ammo box/Tupperware/5 gallon bucket), hide one at the base of an Interstate bridge pillar, and the other at the base of a pine tree 5 miles deep in the woods. Which one do you think will generate the first call to the cops?
Very good point Thanks for your response-